Pen-like syringe device and syringe system

Abstract

A syringe device and a syringe system with a syringe device provides an ergonomic syringe device which enables safe operation and safe injection by using a pen-like syringe device having a drive housing, a syringe receptacle for receiving a syringe having a syringe body and a plunger guided therein, and a manually operable push button for activating an electrical delivery unit. The drive housing has a pressure supply unit for pneumatically actuating the plunger and a coupling connection for connection to an external supply unit. The pressure supply unit includes a drive channel which can be connected to the plunger of an inserted syringe. The syringe device has a vent channel connected to the drive channel and via an opening to the environment, the opening being closable by a finger when the push button is actuated.

The invention claimed is: 
     
         1 . A pen-like syringe device for medical purposes, comprising a drive housing, a syringe receptacle adjoining the drive housing for receiving a syringe, which has a syringe body and a plunger movably guided in the syringe body, and a manually operable push button for activating an electrical delivery unit, wherein the drive housing has a pressure supply unit for pneumatically applying pressure or negative pressure to the plunger of a syringe inserted into the syringe receptacle and a coupling connection for pneumatically and/or electrically connecting the pressure supply unit to an external supply unit which is arranged away from the drive housing, the pen-like syringe device having no integrated power supply unit, and the pressure supply unit comprising a drive channel which is connectable to the plunger of the syringe inserted into the syringe receptacle and the pen-like syringe device comprises a vent channel having a first end connected to the drive channel and a second end connected to the environment via an opening, the opening being closable by a finger actuating the push button upon actuation of the push button. 
     
     
         2 . The pen-like syringe device according to  claim 1 , wherein the opening is arranged directly on or directly next to the push button and can thereby be closed directly by the finger actuating the push button. 
     
     
         3 . The pen-like syringe device according to  claim 1 , wherein the external supply unit comprises an electrical delivery unit for supplying the pressure supply unit with pressure or negative pressure. 
     
     
         4 . The pen-like syringe device according to  claim 3 , wherein activation of the electrical delivery unit is effected by actuating the push button. 
     
     
         5 . The pen-like syringe device according to  claim 3 , wherein the electrical delivery unit comprises a diaphragm pump. 
     
     
         6 . The pen-like syringe device according to  claim 1 , wherein the pressure supply unit comprises an electrical delivery unit connected to the drive channel, the electrical delivery unit being activated and the drive channel being applied with pressure or negative pressure by actuating the push button. 
     
     
         7 . The pen-like syringe device according to  claim 1 , wherein the push button is arranged near the front end or the end facing away from the drive housing of the pen-like syringe device. 
     
     
         8 . The pen-like syringe device according to  claim 1 , wherein the syringe receptacle comprises an operating lever which is pivotably connected to the drive housing via a swivel joint arranged at an end of the drive housing facing away from the syringe receptacle. 
     
     
         9 . The pen-like syringe device according to  claim 8 , wherein the vent channel runs at least partially in the operating lever and/or the push button and the opening is arranged on or on top of the operating lever. 
     
     
         10 . The pen-like syringe device according to  claim 1 , wherein the syringe receptacle comprises a head unit, which at least partially grips a syringe shoulder of a syringe inserted into the syringe receptacle, at least part of the syringe shoulder bearing directly against the head unit in an operating state of the pen-like syringe device. 
     
     
         11 . The pen-like syringe device according to  claim 10 , wherein a syringe inserted into the syringe receptacle is clamped and fixed in the operating state of the pen-like syringe device by the head unit and the side of the drive housing facing in the direction of the syringe receptacle, so that no clamping of a syringe flange of the syringe takes place. 
     
     
         12 . The pen-like syringe device according to  claim 1 , wherein the pen-like syringe device has a temperature control unit for controlling the temperature of a substance contained in an inserted syringe. 
     
     
         13 . The pen-like syringe device according to  claim 1 , wherein a syringe is inserted into the syringe receptacle. 
     
     
         14 . A syringe system comprising the pen-like syringe device according to  claim 1 , and an external supply unit arranged away from the pen-like syringe device, the external supply unit comprising a power supply unit with a battery or an accumulator and an electrical delivery unit. 
     
     
         15 . The syringe system according to  claim 14 , wherein the electrical delivery unit comprises a diaphragm pump. 
     
     
         16 . The syringe system according to  claim 14 , wherein the electrical delivery unit is connected to the push button of the pen-like syringe device via an actuating connection. 
     
     
         17 . The syringe system according to  claim 14 , wherein the external supply unit comprises a fastening device with which the external supply unit is fastenable to an arm of an operator. 
     
     
         18 . The syringe system according to  claim 14 , wherein the external supply unit comprises a towel dispenser dispensing a cover for covering the external supply unit. 
     
     
         19 . The syringe system according to  claim 14 , wherein the external supply unit has a control unit for controlling the external supply unit. 
     
     
         20 . The syringe system according to  claim 14 , wherein the external supply unit has a display unit for displaying parameters of the syringe system, the parameters including at least one of a state of the power supply unit, operating parameters of the electrical delivery unit, and pressure or negative pressure acting on the plunger of a syringe inserted into the syringe receptacle.